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Finding the Fourth Proportional to 76,476.40, 114,692.72 and 39,013.08

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Solution

The fourth proportional to 76,476.40, 114,692.72 and 39,013.08 is: 58,508.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,476.40 : 114,692.72 = 39,013.08 : x
  2. Step 2: Convert to fraction form
    76,476.40/114,692.72 = 39,013.08/x
  3. Step 3: Cross multiply
    76,476.40x = 114,692.72 × 39,013.08
  4. Step 4: Simplify right side
    76,476.40x = 4,474,516,260.78
  5. Step 5: Solve for x
    x = 4,474,516,260.78/76,476.40
  6. Step 6: Final answer
    x = 58,508.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.